High Wall of Lothric

Castle ramparts overrun by hollows and guarded by a dragon. Vordt waits at the gate and the Dancer later.

Suggested level: 10–20

Bosses

Vordt of the Boreal Valley: A beastly knight with a frost mace. Attack his hind legs and dodge the charges in his second phase.
Dancer of the Boreal Valley: A graceful, swaying giant at the High Wall. Triggered by the Basin of Vows or after the third Lord falls.

Bonfires

High Wall of Lothric
Tower on the Wall
Vordt of the Boreal Valley
Dancer of the Boreal Valley

Items found here

Mail Breaker: Down the ladder after re-entering the first building; follow the path to it. Sirris also gifts a Blessed one.
Long Sword: Corpse closest to the door on the dragon-guarded bridge; Greirat also sells one.
Broadsword: In the room to the right of the wooden walkway inside the main hall.
Astora Straight Sword: In a dark, easy-to-miss chest past the Green Blossom down the wooden walkway of the main hall.
Claymore: Corpse on the right-hand ledge of the dragon-guarded bridge.
Rapier: By a water drain in a corner of the courtyard with the Winged Knight.
Battle Axe: Dropped by the mimic on the lowest floor of the building past the dragon-guarded bridge (it gives a Deep Battle Axe).
Club: Corpse closest to the stairs on the dragon-guarded bridge.
Lucerne: On the walkway to the left in front of Emma's chapel.
Longbow: Top of the tower full of Hollows across the first bridge to the right of the starting bonfire (one of them transforms).
Iron Round Shield: Random drop from the Hollow soldiers carrying it; the dragon burns several on the bridge.
Wooden Shield: Random drop from shield-bearing Hollow soldiers on the High Wall.
Silver Eagle Kite Shield: In a chest down the wooden walkway inside the main hall below the rooftop of Hollows.
Steel Soldier Helm: Random drop from helmeted Hollow soldiers on the High Wall.
Deserter Armor: Random drop from the Hollow soldiers on the High Wall.
Deserter Trousers: Random drop from the Hollow soldiers on the High Wall.
Blue Tearstone Ring: Given by Greirat after you free him with the Cell Key and agree to his request.
Ring of Sacrifice: On a roof reached by a running jump from the stairs by the Winged Knight courtyard (one of several copies).
Fleshbite Ring+1: NG+: on a corpse across a long running jump from the roof full of Hollows.
Ring of the Evil Eye+2: NG++: in a dark corner behind barrels in the big enemy room of the main hall.
Small Lothric Banner: Emma gives it when you speak to her in the High Wall chapel.
Cell Key: High Wall of Lothric: in the big hall where the first Estus Shard sits on an anvil.
Basin of Vows: Emma gives it after three Lords of Cinder are dead, or drops it if killed.
Soul of Boreal Valley Vordt: Dropped by Vordt of the Boreal Valley.
Soul of the Dancer: Dropped by the Dancer of the Boreal Valley.
Estus Shard: High Wall of Lothric: on an anvil in the big hall downstairs, the same room as the Cell Key.
Binoculars: High Wall of Lothric: on a corpse up the stairs by the dead dragon, left of the first bonfire.

Walkthrough: High Wall of Lothric

Open the door and light the High Wall of Lothric bonfire.
Head right onto the rampart, take the small stairs down on the left and grab a Soul of a Deserted Corpse.
Climb back and up the far stairs for the Longbow and Standard Arrow x12. Hollows that turn into a Pus of Man drop a Titanite Shard and an Ember.
From the bonfire go left this time for another Soul of a Deserted Corpse.
Climb up to the top of the turret and take the Binoculars.
Go down, drop behind the dragon and duck into a little doorway for Gold Pine Resin x2.
Drop into the room below and take Firebomb x2 beside the table.
Climb down the ladder for a Soul of a Deserted Corpse outside the cell.
Pelt the resting dragon with arrows; after enough hits it leaves a Large Titanite Shard behind and takes off.
On the bridge the dragon scorches, the body nearest the door carries the Long Sword.
Where the dragon sat, collect the Claymore, the Club, an Ember and a Large Soul of a Deserted Corpse.
Open the door below the dragon's perch and head downstairs. Kill the Mimic, or charm it first, for a Battle Axe with the Deep infusion.
Leave by the far door and loot a Soul of a Deserted Corpse on the left.
In the next building take Firebomb x3 off a wooden beam.
Exit by the side, climb the stairs for a Titanite Shard and light the Tower on the Wall bonfire.
Back at Firelink Shrine, Ringfinger Leonhard is now near the throne and gives you Cracked Red Eye Orb x5. If he is missing, try again after Vordt.
Go back inside, down the stairs and out the side door for a Soul of a Deserted Corpse on the right.
On the roof: another Pus of Man source, Firebomb x3, a Crystal Lizard that drops a Raw Gem and a Large Soul of a Deserted Corpse.
NG+ only: the Fleshbite Ring+1 is on a neighbouring roof you can jump to.
Climb down the ladder and step onto the side roof for Black Firebomb x3.
On the archers' balcony next to it, pick up Firebomb x3.
Back inside by the ladder, turn left and smash the pots for Undead Hunter Charm x2. Further in is a Titanite Shard; expect an ambush.
In the main room, check the first corner for a Soul of a Deserted Corpse.
Go through the doorway, take the next door on the left and loot the Broadsword.
Go down the stairs, keep right and open the chest for the Silver Eagle Kite Shield.
Back at the original entrance, roll through the debris and follow the ledge for Green Blossom x2.
Drop down and open the chest for the Astora Straight Sword.
In the room beyond, take the Cell Key and a Titanite Shard from the bodies.
Take the Estus Shard from the altar in the same room.
NG++ only: the Ring of the Evil Eye+2 hides behind barrels at the back of this room.
Leave on the lower level and drop beside the drain for the Rapier.
Two bodies around the fountain each carry an Ember.
Toward the courtyard, turn left for a Soul of a Deserted Corpse.
Climb the stairs right of the courtyard entrance, go straight and turn left after the first door for Green Blossom x3.
Ride the lift to open a shortcut to the first bonfire; behind it at the top is Throwing Knife x6.
From the Tower on the Wall bonfire go all the way down inside the tower; the next room holds Throwing Knife x8.
Further along the passage, opposite a door, is the Mail Breaker.
Lower down, open the locked cell with the Cell Key to free Greirat of the Undead Settlement. Agree to look for Loretta to get the Blue Tearstone Ring; he moves to Firelink Shrine.
Ride the lift shortcut down, head for the courtyard and take the stairs on the left above the fountain to grab a Large Soul of a Deserted Corpse on the roof.
Jump onto the awning for a Ring of Sacrifice.
In the terrace corner above the courtyard stairs you can summon Lion Knight Albert for Vordt.
Go left and up the stairs before the castle; the red-eyed Lothric Knight drops a Refined Gem.
In the chapel, Emma, High Priestess of Lothric Castle gives you the Small Lothric Banner; talk again to join the Way of Blue.
Leaving the chapel, take the left stairs to find the Lucerne.
If you killed Sword Master Saber earlier, his summon sign is just before the big gate.
Pass the gate and defeat Vordt of the Boreal Valley for the Soul of Boreal Valley Vordt. Then raise the Small Lothric Banner at the cliff to be carried to the Undead Settlement.

Walkthrough: Dancer and Consumed King's Garden

Defeat the Dancer of the Boreal Valley for the Soul of the Dancer.
Place the Basin of Vows and climb the ladder into Lothric Castle.
Take the first left into the Consumed King's Garden for a Soul of a Weary Warrior.
Jump off the lift halfway, go down the stairs and grab an Estus Shard on the right.
Go left and drop to the stairs for a Titanite Chunk.
NG++ only: the Sage Ring+2 is on another broken stairway.
Right of the lift structure is a Ring of Sacrifice.
NG+ only: the Wood Grain Ring+1 is behind the lift.
Among the slugs: Black Firebomb x2, the Claw, the Shadow Set and a Human Pine Resin.
Under the stairs on the left is a Dark Gem; up the stairs is a Titanite Chunk.
Over on the right side you can grab Human Pine Resin x2 plus one more Titanite Chunk.
A door on the right side of the garden has a lift; ride it up for a Titanite Scale and a Titanite Chunk and open the shortcut.
Ride back down and hop off halfway for the Dragonscale Ring.
If Hawkwood has left the shrine, his sign is on the big platform before the two knights.
The second greatsword knight outside the boss room drops the Magic Stoneplate Ring.
Defeat Oceiros, the Consumed King for the Soul of Consumed Oceiros.
Continue down past the arena; a body holds the Path of the Dragon gesture.
Left of the gesture a chest holds a Titanite Scale, and a second chest further on another. The wall behind it is fake and leads to the Untended Graves.